Valve



N. PALMAFFY."

VALVE. APPLICATION FILED mAY'|4,1919.

Pa*ented Jul}, 25, 1922 NIIIIWIIH II||| I INVENTOR W ws f ED STATESNICHOLAS PALMAFFY, OF WEST ORANGE, NEW JERSEY.

VALVE.

Specification of Letters Patent.

Patented July 25, 19 22.

Application filed May 14, 1919. Serial No. 297,029.

To all whom it may concern:

Be it known that I, NICHOLAS PALMAFFY, a citizen of the United States,and resident of the city of West Orange, State of New Jersey,haveinvented certain new and useful Improvements in Valves, of which thefollowing is a specification.

This invention relates to valves and has for its primary object toprovide a valve especially designed for use in connection with waterfaucets and of such construction that the movable valve element isautomatically returned to its closed position and tightly held againstits seat by the water pressure.

It is a more particular object of my invention to provide a valve of thecharacter above stated including a rotary valve ele ment and cam meansfor imparting a rectilinear movement to the valve element during suchrotary movement whereby the valve is opened.

And it is also an important object of the invention to provide a valvehaving the above noted desirable feature which con-' With the above andother objects in View,

the present invention comprehends an improved construction, combinatlonand relative arrangement of the several parts as Wlll be hereinaftermore fully described and subsequently incorporated in the subjoinedclaims.

In the accompanying drawing forming a part of this specification andwherein like reference characters designate corresponding partsthroughout the several views:

Fig. 1 is a longitudinal sectional view illustrating one embodiment ofmy invention, certain of the parts being shown in elevation and thevalve being in its closec position.

Fig. 2 is a similar View, the valve being open.

Fig. 3 is a horizontal section taken on the line 33 of Fig. 1.

Fig. 4 is a horizontal section taken on the line 4-4 of Fig. 2.

Referring in detail to the drawing 5 designates the valve casing, whichas herein shown is in the form of a' faucet and pro vided with an outletor discharge spout 6. It is, however, to be distinctly understood thatthe present invention is not limited inits utility to this specific formof valve casing but is readily adaptable to many other types of valvesemployed for different purposes. v

The casing 5 is formed with a longitudina'l bore having a main portion 7of relatively large diameter arid the reduced portion 8 in which thestem of the valve member to be presently referred to is slidably androtatably engaged.

Between the main portion 7 and the reduced portion 8 of the bore of thevalve casing there is formed the elongated tapering or conical valveseat 9. This valve'seat at its smaller end merges into the wall of theportion 8 of the bore while the larger end of the seat is of appreciablyless diameter than the main portion 7 of the bore,

.the wall of the latter portion of the bore being inwardly curved orbevelled to the valve seat as sliownat 10. The outlet passage 11 throughthe spout 6 opens at its inner end upon the valve seat 9.

12 designates the valve member which is of elongated conical formandalso of hol-' low construction to provide a water receiving chamber13. This valve member is of a length somewhat in excess of its greatestdiameter and said valve member and the seat 9 are properly ground inorder to assure a tight fit at their contacting faces. The valve stem 14is preferably formed integral with the smaller end of the valve memberand extends through the portion 8 of the bore in the valve casing.

The latter end of the casing is formed with 'a diametrically reducedextension 15 through which the bore 8 is likewise extended. This reducedextension of the valve casing is formed with the cam groove 16 in itsperiphery which extends around substantially one half of thecircumference of said extension. The valve stem 14 projectslongitudinally beyond the extension 15 and upon the end of the valvestem a hand-wheel 17 is threaded. This wheel is formed with a hollow hubportion 18 which closely surrounds the extension 15 of the valvecasing.-

In the hub of the wheel 18 a pin 19 is suitably fixed, the inner end ofsaid pin being en aged in the cam groove 16.

t its opposite end the valve casing 5 is exteriorly tapered and threadedas shown at 20, said casingtbeing formed at the inner end of saidthreaded portion with the annular shoulder 21 for bearing engagementagainst a washer plate 22 which is engaged upon the threaded end of thecasing.

Having above described the several structural features of my improvedvalve, its operation will be understood as follows:

In the closed position of the valve member 12, as seen in Fig. 1, thepin 19 carried by the hand wheel is engaged in the upper end of the camgroove 16. When it is desired to open the valve, the hand wheel 17 isturned to the left, and the valve member being connected with the wheelis of course turned or rotated. In this turning movement of the Wheel,the'end of the pin 19 riding against the wall of the groove 16 alsocauses a rectilinear movement of the valve member and the hand wheelwhich continues until the hub 18 of the wheel abuts against the body ofthe valve casing, at which time substantially one-half of a full turn ofthe wheel will have been made and the pin 19 will be disposed in theinner end of the groove 16. The valve member 12 will now be in its openposition in spaced relation to the seat 9 as seen in Fig. 2 of thedrawing and the water may freely flow from the bore 7 around the valvemember and through the outlet passage 11. The valve will remain in thisopen position as long as the wheel 17 is held or grasped with the hand.Immediately upon the release of the wheel, the water pressure within thechamber 13 acts against the wall of the valve member and forces saidvalve member longitudinally and returns the same to its closed positionupon the seat 9. Of course, in this return movement of the valve memberthe pin 119.coacting with the wall of the cam groove 16 imparts areverse rotation to the valve memher. The water pressure acting toautomatically urge the valve member to its seat and exerting ressureuniformly against-all portions of t e wall of said member, will maintaina very tight engagement of said Wall with the surface of the seat 9.Thus, the

possibility of leakage of the water, when the valve is closed, 'into theoutlet passage is substantially obviated.

From the foregoing description taken in connection with the accompanyingdrawing,

the construction, manner of operation, and several advantages of'myinvention will be clearly and fully understood. A valve of the improvedconstruction above described provides means whereby the valve member maybe quickly moved to its fully opened position so that a maximum flow ofwater may be obtained, and such flow will be almost instantly cut offautomatically, by the Water pressure, simply by releasing the handwheel. It is also to be noted that there are no threaded relativelymovable parts employed for the operation of the valve, and the improvedconstruction also eliminates the necessity of using springs and othereasily breakable elements for returning the valve member to its closedposition. The several parts of the device are each of very sim 1e formso that the valve as a whole will not be liable to get out of order orrequire frequent repairs and can also be manufactured and sold atcomparatively small cost.

While I have herein shown and described I one practical embodiment ofthe invention, it is to be understood that the same may also beexemplified in numerous alternative forms and I do not therefore,consider myself limited to the construction, form, or arrangement of theseveral parts as above described, .but reserve the privilege ofresorting to all such legitimate modifications as may fairly fall withinthe spirit and scope of the invention as claimed.

I claim:

1. In a valve, a casing having a bore terminating at one of its ends inan elongated valve seat and a laterally extending outlet passagecommunicating with said seat, and a hollow conical valve member normallyheld upon said seat solely by fluid pressure acting against the innersurfaces of the valve walls, the walls of said conical valve memberbeing imperforate and spaced from said seat when the valve member is inopen position to permit passage of the fluid into the outlet, saidimperforate wall extending circumferentially over the end of the outletpassage and closing the same when the valve is in its normal position.

2. In a valve, a casing having a bore terminating at one of its ends inan elongated conical valve seat and. having an outlet passageextendinglaterallyfrom the valve seat and opening upon one side thereof,and a conical valve member normally held upon said seat by fluidpressure and closing said outlet passage, said valve member and saidcasing being constructed to prevent outflow of fluid from the casingwhen the valve strueted to prevent out-llow ol fluid from the easingwhen the valve member is in closed position upon said seat.

- In testimony that he claims the l'ore oin; as his invention, he hassigned his name hereunder.

NIK PALMAFFY.

